Gas generator and burner



` eb, s? ma C. A. EFKN GAS GENERATOR AND BURNER 2 sheets-sheet Flled Apr7 1B, 19121 A/ nu Feb. 6, 1923. 11A-44,451 C. A. BERKINS GAS GENERATOR AND BURNER Filed Apr. 18, 1921 2 sheets-sheet 2 Patented Feb. 6, i923.,

1' i; were it-.si me; rays tirati-Mii CLARENCE A. BERKNS, OF h'INDTEAl-ELIS, T-:CCNNESGT'L GAS GENERATOR AND BURNER.

Application filed April 18, 1921. Serial No. 462,131.

To all fio/icm t may conc/ara Be it known. that l.,-Cnannivcn A. Bnnmivs, a citizen of the United States.y residingat Minneapolis, in. the county of Hennepin and State of Minncsotaphave invented certain new and useful `improvements in Gas Generators and Burners; and l do hereby declare the following to be a full, clear, and exact description Vof the inventiom such. as

will enable others skilled in the art to which fire pot of a range or similar stove directly.

upon theV grate thereof7 anch hence5 is readily applicable lto ranges and cooking stoves such as found onthe market and already in use. It comprises a so-called air box or chamber formed with an open bottom adapted to be placed directlyT on the grates and provided on top with a declrformedwvitli one or more, preferably two. upstanding air nozzles. @verlying the air nozzles are refiectors of novel arrangement` The fluid fuel supplyfpipes are brought .in through the bottom of the air box or chamber and are connected to generating tubes that extend around or approximately around the air nozzles and are terminated in nozzle pipes that extend through the respective air nozzles and are arranged to discharge within the latter.

The preferred form of the burner is illustrated in the accompanying` drawings, wherein like characters indicate like parte throughout the several views.

Referring to the drawings:

Fig. l is a side elevation of a range equipped with the improved burner, some parts of the side wall of the range being broken away;

Fig. 2 is a transverse vertical section taken approximaiclj.v 2-2 of Fig. l;

Fig. 3 is a planview of the generating burner removed from the range;

Fig. l is a vertical section taken appenni-:imately on the irregular line Ll-ii of and Fig. 5 is a transverse section on the line 5-5 of Fig. 4.

Gf the parts of the range.I it is oniy desirable. for the purposes ofthis ca se, to par-- ticularly note the main or outer shell 6. the oven 7, the grate 8 and the frame chamber 9 that extends over down one le and Yunder the oven and thence to the smoke pipe in.

on the iii'cgfiilar line the customary way.

The so-called'air box or chamber 10, of the `generator andlnirnerF as stated. is enen at `its bottom and placed directly on the ,grate 8, .within the fire pot of the rango.

The top of this air box is in the forin of a deck 11 provided near the ends of the box 10 with upstanding` air nozzles 12 that are open to said air box preferably through a plurality of air passages 13 in said deck.

Spaced above each air nozzle 12 is a deiiector preferably in the form of a heavy disk-like head 14.- formed on the extrfnnitiesy of arms 15 that project in opposite directionsfroln a suppmitin@` stem 16. This stem 16 is preferably made angular and tapered at its lower end and detachably seated inte the corresponding form seat of a lug-like socket 17 cast integra] with the flange of the deck 11. For an important purpose. which will presently appear the under-surfaces of the dcfiector 14 and the upper edge surfaces of the nozzles l2 are inclined in a direction away from the oven 7.

The fluid hydro-carbon fuel is delivered to the burner through small supply'pipes 18, which, as shown, are tapped into expanded couplings 19 and, at their upper ends, are provided with bushings 20 that contract the supply passages at such points. The generating tubes 21 are of approximately U- shaped form and extend in a horizontal direction around the respective nozzles 12 but are spaced therefrom. At their receivinfends, the generating tubes 21 are connected by elbows 22 to short pipe sections 23 that extend downward through the deck 1l into the air box 10 and have threaded engage-Y vnozzle extensions V25 the pipes 23, bear against the deck 11 and' clamp the `couplings 19 against the same,

Vthereby firmly sui ortino the .Qeneratinr .f D 1A o tubes'.

The generating tubes are provided with that are ext-ended freely through large diametric openings in the sides of the air nozzles 12 and, at the center of said nozzles, are provided with small upwardly opening discharge passages 26 through which the generated vapor or gas will be discharged directly upward. f The outer ends of the nozzle extensions 25 are closed by caps 27.

By reference to Fig. 3, it will be noted that the engineering tubes 21-25 extend through approximately three hundred and sixty degrees around the respective nozzles and fromv thence extend in opposite directions outward diametrically through the respectivenozzles. his positions the generating tubes where they will be subjectedto heat from the flames of the burner throughout the complete circle or three hundred and sixty degrees and, consequently, gives a maximum vapor generation.

The supply pipes 18 are preferably brought into the ash pit chamber of the stove through the damper-equipped draft opening 28 and are connected through valves 29l to the depending` delivery tube 30 of the fuel supply tank 31. Preferably, a layer of ashes y will he placed on the grate 8 around the base of the air hox 10, so that the only draft through the grate will be upward through said box. c y

In starting the generating` action, kerosene or gasoline can be poured onto the ashes and ignited, and after the generating tubes are hot enough to produce generation of gas or vapor, the supply of the liquidV fuel will be turned on and, thereafter, the generation will be automatic.

The flames from the nozzles 12 will strike directly aga-inst the oblique under-surfaces of the deflector heads 14C and will be spread somewhat in all directions around said heads t .nasa-,aai

but there will be a marked general deection of the flamesover the top of the oven, vas indicated by arrows on Figs. 2 and 5. This is important because it prevents too intense ieat on the front griddles and causes more even distribution along the under-surface of the entire top of the sto-ve orrange.

cludes thedeflecting heads 1d, may be lifted out of position and placed where it will not interfere with close packing of the device and where said removal device is not liable to be broken. Preferably, said deflecting device is made in the form of an integral gray iron casting, which is well adapted to withstand heat but quite easily broken when roughly handled.

"What l claim is: f

1. A generator and burner of the kind described comprising an air box having an openhottom andl provided at its top with an upstanding nozzle and a deflector spaced from but overlying said nozzle, aiuid fuel supply pipe extended through said box to the top thereof, a generating tube connected to said yfuel supply pipe and extending around said nozzle through approximately three hundred and sixty degrees and from thence passing diametrically through said `nozzle and provided within said nozzle with a fuel discharge port.

2; A duplex generatorand burnerof the kind described comprising an air box having an open bottom and provided in its top with two upstandingair nozzles and above said nozzles with deflectors, duid fuel supply pipes extendedupward through the central portion of the top of said box, generating` tubes connected to the respective fuel supply pipes and extending around the respective nozzles through approximately three hundred and sixty degrees and from thence extended in oppositedirections diametrically outward through` the respective nozzles and provided within said nozzles with fuel discharge ports."

In testimony whereof I affix my signature.v

CLARENCE A. BERKINS.

ln v shipment, the T-shaped structure, which in- 

